TY - JOUR AU - V.M. Sirjaev TI - Semilattices of width 3 whose decomposable elements form a chain. JO - Semigroup forum PY - 1979 SP - 201 EP - 240 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1979__17_134319/ ID - SF_1979__17_134319 ER -